/* Base Styles - Resets and Fundamentals */

/* CSS Reset & Box Model */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* HTML & Body */
html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--dark-gray);
    background-color: white;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-blue);
}

h2 {
    font-size: 2rem;
    color: var(--primary-blue);
}

h3 {
    font-size: 1.5rem;
    color: var(--dark-gray);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--medium-gray);
}

/* Links */
a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--dark-blue);
}

/* === ENHANCED BUTTONS BASE WITH ANIMATIONS === */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    position: relative;
    overflow: hidden;
    transform: translateY(0) scale(1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.4s ease;
}

.btn:focus {
    outline: 3px solid rgba(30, 58, 138, 0.3);
    outline-offset: 2px;
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(1px) scale(0.98);
    transition: all 0.1s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dark-blue), #1e3a8a);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.3);
    border-color: rgba(255,255,255,0.2);
}

.btn-secondary {
    background: linear-gradient(135deg, transparent, rgba(30, 58, 138, 0.05));
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.3);
}

/* Enhanced Urgent Button */
.btn-urgent {
    background: linear-gradient(135deg, #dc2626, #991b1b) !important;
    color: white !important;
    animation: urgentButtonPulse 2s infinite;
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.3);
    border: 2px solid transparent;
}

.btn-urgent:hover {
    background: linear-gradient(135deg, #b91c1c, #7f1d1d) !important;
    transform: translateY(-4px) scale(1.03) !important;
    box-shadow: 0 10px 30px rgba(220, 38, 38, 0.5) !important;
    border-color: rgba(255,255,255,0.3) !important;
    animation: none;
}

@keyframes urgentButtonPulse {
    0%, 100% { 
        transform: translateY(0) scale(1);
        box-shadow: 0 6px 20px rgba(220, 38, 38, 0.3);
    }
    50% { 
        transform: translateY(-2px) scale(1.01);
        box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
    }
}

/* Lists */
ul, ol {
    margin-bottom: var(--spacing-sm);
}

li {
    margin-bottom: var(--spacing-xs);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Form Elements */
input, textarea, select, button {
    font-family: inherit;
    font-size: inherit;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}